Hemingway said: "People living in this world can't be an island", they are interrelated and interdependent.

The phrase "environment changes people" mainly emphasizes the influence of the objective world on people, and people will be affected by the environment. I think we should treat this sentence dialectically. On the one hand, there are stories of "Meng Mu's Three Movements" and "Being near Zhu Zhechi, being near Mexico is black" in ancient times. From this perspective, the environment can change people. On the other hand, the ancients said that "mud never sticks", which is quite appropriate.

"People create the environment", this sentence mainly emphasizes people's subjective initiative to the objective world, and I think this sentence is correct. From human evolution to today, human beings have created the world and changed it, not to mention the environment.

These two sentences seem to be opposite, but in fact they are dialectical unity. In this dialectical relationship, man is the internal cause and environment is the external cause. Internal factors determine external factors, that is, what kind of people create what kind of environment; External causes work through internal causes, that is, the environment affects people through people.